Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to Alberta, Idaho, and Nevada; also in eastern North America, where native.
Habitat: Shores and marshes, where often emergent, and irrigated areas.
Flowers: June-September
Origin: Introduced from eastern North America
Conservation Status: Not of concern
Pollination: Wind
[none provided]
PNW Herbaria: Specimen records of Juncus effusus ssp. solutus in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Juncus effusus ssp. solutus checklist entry
OregonFlora: Juncus effusus ssp. solutus information
E-Flora BC: Juncus effusus ssp. solutus atlas page
CalPhotos: Juncus effusus ssp. solutus photos